Ever since they were children, Gillian Hearth has been her sister Frankie's guardian, her sounding board, and her best friend. Together, the Hearth sisters quietly bury their secrets and form a formidable team during any crisis. Purchasing the old Blymhill house with the hopes of turning it into an artists' retreat, the sisters are finally living their dream. But when Frankie's stable ground is rattled by a vengeful ex-boyfriend, an unstable friend from the past shows up unannounced with delusions of intimacy, and a cold case cop starts sniffing around their door, the sisters are forced to wonder how far they will go to keep their secrets safe. Gillian discovers that, this time, her fight is about to land her in the crosshairs of a dangerous predator who will use any means necessary to remove her from the equation. With everything she holds dear under threat, Gillian battles to keep her head above water and her skeletons in the closet.